// Update is called once per frame
 void Update()
 {
     if (canRespond)
     {
         if (Input.GetKeyDown(KeyCode.Alpha1))
         {
             score    += current.score1;
             lastTime  = Time.time;
             responded = true;
             current   = Talk.GetDialogDefinition(current.next1);
         }
         if (Input.GetKeyDown(KeyCode.Alpha2))
         {
             score    += current.score2;
             lastTime  = Time.time;
             responded = true;
             current   = Talk.GetDialogDefinition(current.next2);
         }
         if (Input.GetKeyDown(KeyCode.Alpha3))
         {
             score    += current.score3;
             lastTime  = Time.time;
             responded = true;
             current   = Talk.GetDialogDefinition(current.next3);
         }
         if (Input.GetKeyDown(KeyCode.Alpha4))
         {
             score    += current.score4;
             lastTime  = Time.time;
             responded = true;
             current   = Talk.GetDialogDefinition(current.next4);
         }
         if (responded)
         {
             canRespond = false;
             responded  = false;
             prompt.GetComponent <TextMesh>().text  = current.prompt;
             option1.GetComponent <TextMesh>().text = "1) " + current.option1;
             option2.GetComponent <TextMesh>().text = "2) " + current.option2;
             option3.GetComponent <TextMesh>().text = "3) " + current.option3;
             option4.GetComponent <TextMesh>().text = "4) " + current.option4;
         }
         currentScore.text = "Score: " + score.ToString();
     }
     if (Time.time - lastTime > 3)
     {
         canRespond = true;
     }
 }
 // Use this for initialization
 void Start()
 {
     currentScore.text = "Score: " + score.ToString();
     current           = Talk.GetDialogDefinition(_cat);
     prompt            = transform.Find("Prompt").gameObject;
     option1           = transform.Find("Option1").gameObject;
     option2           = transform.Find("Option2").gameObject;
     option3           = transform.Find("Option3").gameObject;
     option4           = transform.Find("Option4").gameObject;
     prompt.GetComponent <TextMesh>().text  = current.prompt;
     option1.GetComponent <TextMesh>().text = "1) " + current.option1;
     option2.GetComponent <TextMesh>().text = "2) " + current.option2;
     option3.GetComponent <TextMesh>().text = "3) " + current.option3;
     option4.GetComponent <TextMesh>().text = "4) " + current.option4;
     score      = 0;
     canRespond = false;
     responded  = false;
     lastTime   = Time.time;
 }